OVER-THE-AIR TESTING OF WIRELESS DEVICES USING LOG FILES
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United States of America Patent
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Jan 15, 2015
app pub date -
Jul 9, 2014
filing date -
Jul 9, 2013
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Abstract
An over-the-air test system for wireless devices uses log files to simulate realistic time-varying channel conditions and provides channel state information to enable dynamic adaptation to current channel conditions. A signal transmission device transmits test signals to the device under test via a channel emulator. The channel emulator causes the test signals to exhibit channel conditions which vary over time. An over-the-air test chamber in which the device under test is disposed includes multiple antennas which are driven with the test signals from the channel emulator. Channel state information is sent from the device under test to the signal transmission device. The signal transmission device responds to the channel state information by adapting to current channel conditions.
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